/// <summary>
/// Verifies the SASL success message if needed.
/// </summary>
/// <param name="success">The server success response</param>
/// <returns>
/// <b>true</b> if the reponse has been verified; otherwise <b>false</b>
/// </returns>
public bool ProcessSuccess(SaslSuccess success)
{
// The server verifies the nonce and the proof, verifies that the
// authorization identity (if supplied by the client in the first
// message) is authorized to act as the authentication identity, and,
// finally, it responds with a "server-final-message", concluding the
// authentication exchange.
var decoded = Convert.FromBase64String(success.Value);
var serverFinalMessage = XmppEncoding.Utf8.GetString(decoded, 0, decoded.Length);
var tokens = SaslTokenizer.ToDictionary(serverFinalMessage);
var serverSignature = tokens["v"];
return(serverSignature == this.serverSignature);
}
private async Task OnSaslSuccessAsync(SaslSuccess success)
{
if (this.saslMechanism.ProcessSuccess(success))
{
this.State = XmppTransportState.Authenticated;
this.saslMechanism = null;
await this.transport.ResetStreamAsync().ConfigureAwait(false);
}
else
{
this.OnSaslFailure("Server reponse cannot be verified.");
}
}
/// <summary>
/// Verifies the SASL success message if needed.
/// </summary>
/// <param name="success">The server success response</param>
/// <returns>
/// <b>true</b> if the reponse has been verified; otherwise <b>false</b>
/// </returns>
public bool ProcessSuccess(SaslSuccess success)
{
return(true);
}
private Element CreateNode(XmlNodeResult nd, Element parent)
{
string ens;
if (nd.Prefix != null)
{
RemObjects.InternetPack.XMPP.Elements.Attribute at = nd.Attribute.FirstOrDefault(a => a.Prefix == "xmlns" && a.Name == nd.Prefix);
if (at == null)
{
Element el = parent;
ens = string.Empty;
while (el != null)
{
RemObjects.InternetPack.XMPP.Elements.Attribute els = el.Attributes.Where(a => a.Prefix == "xmlns" && a.Name == nd.Prefix).FirstOrDefault();
if (els != null)
{
ens = els.Value;
break;
}
el = el.Parent;
}
}
else
{
ens = at.Value;
}
}
else
{
RemObjects.InternetPack.XMPP.Elements.Attribute at = nd.Attribute.FirstOrDefault(a => a.Prefix == null && a.Name == "xmlns");
if (at == null)
{
ens = string.Empty;
}
else
{
ens = at.Value;
}
}
Element res = null;
switch (ens)
{
case Namespaces.ClientStreamNamespace:
case Namespaces.ServerStreamNamespace:
case "":
if (ens == null && parent != null && parent.Type == ElementType.IQ && nd.Name == "error")
{
res = new IQError();
}
else
{
switch (nd.Name)
{
case "iq":
res = new IQ();
break;
case "presence":
res = new Presence();
break;
case "message":
res = new Message();
break;
}
}
break;
case Namespaces.StreamNamespace:
switch (nd.Name)
{
case "stream":
RemObjects.InternetPack.XMPP.Elements.Attribute att = nd.Attribute.FirstOrDefault(a => a.Prefix == null && a.Name == "xmlns");
if (att == null || att.Value == Namespaces.ClientStreamNamespace)
{
res = new ClientStream();
}
else
{
res = new ServerStream();
}
break;
case "features":
res = new StreamFeatures();
break;
case "error":
res = new StreamError();
break;
}
break;
case Namespaces.StartTLSNamespace:
switch (nd.Name)
{
case "starttls":
res = new StartTLS();
break;
case "failure":
res = new StartTLSFailure();
break;
case "proceed":
res = new StartTLSProceed();
break;
}
break;
case Namespaces.SaslNamespace:
switch (nd.Name)
{
case "mechanisms":
res = new Mechanisms();
break;
case "auth":
res = new SaslAuth();
break;
case "challenge":
res = new SaslChallenge();
break;
case "response":
res = new SaslResponse();
break;
case "abort":
res = new SaslAbort();
break;
case "success":
res = new SaslSuccess();
break;
case "failure":
res = new SaslFailure();
break;
}
break;
}
if (res == null)
{
res = new UnknownElement();
}
else
{
res.Attributes.Clear(); // default ones shouldn't be here during the reading process
}
if (parent != null)
{
res.Parent = parent;
if (parent != fServerRoot)
{
parent.Elements.Add(res);
}
}
res.Prefix = nd.Prefix;
res.Name = nd.Name;
foreach (var el in nd.Attribute)
{
res.Attributes.Add(el);
}
return(res);
}
